Polynonamethylene adipamide
[化] 聚亚壬基己二酰胺; 聚己二酰壬二胺
🧩 词语组成解析
[化] 己二酰二胺
🗣️ 情景例句
That's my boy!
好儿子！
I get up at 8 every morning.
每天早上我8点起床。
What do you do as a director?
作为导演您具体干什么呢？